G.l.c.-m.s. of partially methylated and acetylated derivatives of L-glycero-D-manno- and D-glycero-D-manno-heptopyranoses and -heptitols.
Methylated or acetylated heptopyranose derivatives were prepared variously from L-glycero-D-manno- and D-glycero-D-manno-heptopyranose, O-L- glycero-alpha-D-manno-heptopyranosyl-(1----3)-L-glycero-D-manno- heptopyranose, O-L-glycero-alpha-D-manno-heptopyranosyl-(1----7)-L-glycero- D-manno-heptopyranose, and O-L-glycero-alpha-D-manno- heptopyranosyl-(1----7)-O-L-glycero-alpha-D-manno- heptopyranosyl-(1----3)-L-glycero-D-manno- heptopyranose, which are structural elements of the heptose region of enterobacterial lipopolysaccharides. Each derivative was investigated by g.l.c. and g.l.c.-m.s., and the retention times and fragmentation patterns were used to identify partial structures of the heptose region of the core oligosaccharide of bacterial LPS.
Holst
O
O
Forschungsinstitut Borstel, Institut für Experimentelle Biologie und Medizin, F.R.G.
Brade
H
H
Dziewiszek
K
K
Zamojski
A
A
D000107:Acetylation; D002240:Carbohydrate Sequence; D004187:Disaccharides / Q000737:chemistry; D008401:Gas Chromatography-Mass Spectrometry; D006539:Heptoses / Q000737:chemistry*; D008745:Methylation; D008969:Molecular Sequence Data; D015394:Molecular Structure; D013237:Stereoisomerism; D013402:Sugar Alcohols / Q000737:chemistry*; D014312:Trisaccharides / Q000737:chemistry
D004187:Disaccharides; D006539:Heptoses; D013402:Sugar Alcohols; D014312:Trisaccharides